linux-kernel - Re: [PATCH v1] selftests/bpf: Do not use sign-file as testcase

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Date:   Thu, 27 Apr 2023 22:38:50 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Stanislav Fomichev <sdf@...gle.com>,
        Alexey Gladkov <legion@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, bpf@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>
Subject: Re: [PATCH v1] selftests/bpf: Do not use sign-file as testcase

On 4/27/23 8:28 PM, Stanislav Fomichev wrote:
> On 04/27, Alexey Gladkov wrote:
>> The sign-file utility (from scripts/) is used in prog_tests/verify_pkcs7_sig.c,
>> but the utility should not be called as a test. Executing this utility
>> produces the following error:
>>
>> selftests: /linux/tools/testing/selftests/bpf: urandom_read
>> ok 16 selftests: /linux/tools/testing/selftests/bpf: urandom_read
>>
>> selftests: /linux/tools/testing/selftests/bpf: sign-file
>> not ok 17 selftests: /linux/tools/testing/selftests/bpf: sign-file # exit=2
>>
>> Fixes: fc97590668ae ("selftests/bpf: Add test for bpf_verify_pkcs7_signature() kfunc")
>> Signed-off-by: Alexey Gladkov <legion@...nel.org>
> 
> Acked-by: Stanislav Fomichev <sdf@...gle.com>
> 
>>   tools/testing/selftests/bpf/Makefile | 3 +--
>>   1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
>> index b677dcd0b77a..fd214d1526d4 100644
>> --- a/tools/testing/selftests/bpf/Makefile
>> +++ b/tools/testing/selftests/bpf/Makefile
>> @@ -88,8 +88,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
>>   	xskxceiver xdp_redirect_multi xdp_synproxy veristat xdp_hw_metadata \
>>   	xdp_features
>>   
>> -TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file
>> -TEST_GEN_FILES += liburandom_read.so
>> +TEST_GEN_FILES += liburandom_read.so urandom_read sign-file

Given you move over both of them, the commit msg should be adapted accordingly
since it mainly talks about sign-file, less so about urandom_read.

Also now that you remove the TEST_CUSTOM_PROGS, we should probably also remove
the other two instances:

tools/testing/selftests/bpf/Makefile:91:TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read $(OUTPUT)/sign-file
tools/testing/selftests/bpf/Makefile:156:        $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
tools/testing/selftests/bpf/Makefile:674:EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \

>>   # Emit succinct information message describing current building step
>>   # $1 - generic step name (e.g., CC, LINK, etc);
>> -- 
>> 2.33.7
>>